Combination drain and strainer



1940- J. E. FRANCES COMBINATION DRAIN AND STRAINER 2 Sheets-Sheet 1Filed March 8, 1938 Z6 if INVENTOR. J05 6 05 2. fraflces ATTORNEY.

Dec. 24, 1940. FRANCES 2,225,693

COMBINATION DRAIN AND STRAINER Filed March 8, 1938 2 Sheets-Sheet 2Patented Dec. 24, 1940 UNITED STATES PATENT OFFICE Application March 8,

7 Claims.

The invention relates to a combination drain and strainer of the typecommonly employed for sinks, basins and other types of containers andplumbing fixtures.

An object of the invention is to provide a drain and strainer of thecharacter described which may be quickly and readily installed withoutnecessarily requiring expensive and specialized labor With simple andordinary tools, and at the same time provide a fitting of the characterdescribed which will be absolutely sealed against leakage and one thatwill last substantially indefinitely.

Another object of the invention is to provide a drain of the characterabove which may be readily removed and replaced without the use of puttyor paint or other sealing compounds.

A further object of the invention is to provide a drain fitting of thecharacter described in which all torsional strain is eliminated insealing the fitting in a sink or the like, thereby enabling the use ofsubstantially lighter Weight material which may be fashioned bystamping, spinning or drawing, and hence providing a fitting whichiseasier and cheaper to manufacture than similar types fittings heretoforeavailable.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of the preferred form of the invention which is illustratedin the drawings accompanying and forming part of the specification. Itis to be understood, however, that variations in the showing made by thesaid drawings and description may be adopted within the scope of theinvention as set forth in'the claims.

Referring to said drawings:

Figure 1 is a vertical cross sectional view of a combination drain andstrainer constructed in accordance with the present invention.

Figure 2 is a fragmentary front elevation of a part of the refuse basketsupport.

Figure 3 is a cross sectional view of the assembly taken substantiallyon the plane of line 3-3 of Figure 1.

Figure 4 is a plan view of one of the locking rings used in theassembly.

Figure 5 is a side elevation of a part of the locking ring illustratedin Figure 4.

Figure 6 is a partial vertical sectional view of a modified form ofsupport for the drain.

Figure '7 is a view similar to Figure 6 but showing the parts inposition prior to final assembly.

Figure 8 is a perspective view of one of the 1938, Serial No. 196,356

members used in the modified form of construction.

Figure 9 is a partial vertical sectional view of a further modified formof support for the drain.

Figure 10 is a plan view of one of the parts used in the form ofconstruction illustrated in Figure 9.

The combination drain and strainer of the present invention and asillustrated in the accompanying drawings, comprises a tubular member IIwhich is adapted for mounting through an opening I2 in a wall I3 of acontainer or the like, the wall I3 being here arranged as in typicalsink construction with an enlarged annular embossment I4 surrounding theopening I2 and a beveled surface I6 on the inner side ll of the Wallproviding a shallow socket surrounding the opening. The upper end of thetubular member is provided with a transversely extending flange I8 whichis adapted to seat against the beveled surface I6 of the wall in saidsocket so as to dispose the outer peripheral edge I9 of the flangesubstantially flush with the inner side ll of the wall.

In accordance with the present invention, means is provided for sealingthe tubular member in the opening 8 without the use of putty or paint orother sealing materials and to seal the member in the opening in such amanner that the member may be readily removed and replaced if desired.This means consists briefly in the use of a non-torsional,longitudinally expandible device mounted on the member below the wall I2which functions together with an appropriate gasket for clamping thewall between the flange I8 and the gasket compressed at the under sideof the wall. In the present construction, a gasket 22 of annular formand compressible material, such as rubber or the like, is mounted aroundthe member II at the under side of the embossment I4 and is providedwith a tapered top portion 23 adapted to enter the opening I2 betweenthe member I I and the embossment to seal the tubular member in theopening. The longitudinal expansible means mounted on the member forcompressing the gasket in the opening I2 and against the under side ofthe embossment as aforementioned, consists of a backing ring 24surrounding the member II and movable longitudinally thereon against theunder side of the gasket and which is pressed upwardly against thegasket in the present form of the invention, by means of a plurality ofscrews 26 carried by a fixed annular ring member 21 mounted on thetubular member in longitudinally spaced relation to the backing ring 24.The ring 21 may be fixed on the tubular member in any suitable manner asby sweating or clamping the ring in place or by use of offsets orabutments on the member. Preferably the side wall of the tubular memberis itself provided with a transverse offset in one form or another forsupporting the ring, such as here shown by the provision of an annularrecess 28 in the side wall of the member in which the ring is mounted.To secure the ring in such recess, the ring is preferably formed of aplurality of sections 29 and 3| so that the same may be assembled aroundand clamped in the recess 28. Preferably, the opposite ends 32 and 33,and 34 and 36 of the sections are provided with longitudinal shoulderswhich may be clamped togetherthe recess and the latter extending aroundthe base of the gasket 22 to hold the same in place. The screws 26 maybe thread-ed through the body ofv the ring 2'! or if desired in view ofthe relative thinness of the ring, the screws may be carried in threadedinserts in the body of the ring or threaded through nuts supported bythe ring. It will now be clear that the installation of the fitting isextremely simple and requires merely the placing of the member H throughthe opening l2 to seat the flange I8 on the beveled surface lfi of thecontainer wall, fastening the sectional ring 2'! in place in the recess23 of the .member and then extending the screws 26 against the underside of the backing ring 24 so as to compress the gasket 22 into theopening and clamp the container wall between the flange l8 and thegasket. Removal of the fixture from the container Wall is readilyeffected by a reversal of the aforesaid operations, including a releaseof the screws 26 and a removal of the clamping ring 2'! to enablewithdrawal of the member II from the opening. The ease and facility ofinstalling and removing the fitting is of substantial importance, due tothe fact that such fittings are frequently damaged. either at the timeof, installation or subsequently, and with the present construction thefitting may be removed and replaced by one not having special knowledgeand experience in plumbing devices and accomplished by the use of simpleand ordinary tools Without putty or paint or other sealing compounds.

The member I in. addition to providing a drain for a container withwhich it is attached, is preferably formed with a' top refuse receptaclefor receipt of a combination. refuse basket and plug. As here shown the.member is provided with an enlarged upper portion 43, substantially ofthe size of the opening l2, and providing such a refuse receptacle. inthe drainv and which connects with a. reduced cylindrical portion 44normally designated the tail piece of a drain fitting. Between theportions 43 and 44 the member II is formed with a longitudinallyinclined or tapered wall portion 46 which is adapted to support'a refusebasket 41 mounted in the enlarged portion 43'. The basket 41 is providedwith a bottom wall 48 and a perforate annular side wall it and ispreferably slightly smaller in diameter than the enlarged portion 53 ofthe member, so as to seat the lower bottom edge of the basket mediallyon. the inclined wall 46. The upper end 52 of the side wall 49 of thebasket is preferably flared outwardly to snugly engage the inner sidewall of the enlarged portion 43.

Means is preferably provided for opening and closing the drain by eitherraising the basket from wall portion it or drawing the same thereto. Ashere shown, there is mounted across the tubular member in the refuseportion 64 thereof adjacent the base of the inclined wall 46, a barstrainer 53 which is preferably fixedly secured in the tubular member,such as here shown by rolling an inwardly extending bead 53 in the wallportion of the tubular member into an annular recess 56 provided aroundthe periphery of the bar strainer 53. In the present construction themeans for raising and lowering the basket consists of a stem 51 which issecured to the bottom wall 48 of the basket and which extendslongitudinally through a central opening 58 in the bar strainer, theupper end of the stem being extended through an opening 59 in the bottomwall 48 of the basket and threaded into the base of a knob 6| in thebasket so as to clamp the bottom wall 4'! therebetween. Secured to thestem adjacent the strainer 53 are a plurality of winglike projections orlugs 62 which may be passed through enlarged side portions 63 of theopening 58 when the basket is in seated position, and which are adaptedto engage with thread portions 64 in the opening upon rotation of thestem, so as to draw the basket down tightly against the inclined Wallportion 65. In elevating the basket the same is rotated and lifted bymeans of the knob 6| to position the lugs 62 on the top surface of thestrainer where the same may be supported intermediate the side opening63 to support the basket in elevated position over the inclined wallportion 46.

A modified form of longitudinal expansible joint is illustrated inFigures 6 to 8 of the drawings, wherein the tubular drain member I isdrawn tightly against the upper surface of a container wall [3' about adrain opening by means secured against longitudinal displacement on themember at the under side of the Wall and operating to wedge a gasket 23longitudinally against the under side of the wall l3 and into the drainopening of the wall, so as to seal the fitting in the container wallopening. A form of securing means here illustrated provides a straightlongitudinal force against the backing ring 24', as in the firstembodiment, so that the tubular member is not subjected to any torsionalstress and may, therefore, be constructed of light weight material. Themeans for forcing the backing ring 24 longitudinally towards the underside of the container wall here consists of a plurality of cylindricalsections 66 which are adapted to fit around the tubular member I I andare provided with an outwardly and upwardly sloping top flange 61 whichis adapted to engage a complementary sloped under side 68 on the backingmember 24'. The sections 96 are held against longitudinal displacementby means of a lug 69 carried by each of the sections and engageable inthe circumferential recess 28 provided in the front member. Surroundingthe sections 66 is a sleeve H which is driven longitudinally over thesections so as to cause them to snug-1y embrace the drain member I andpress upwardly against the backing ring 2'3. The assembling of the several parts is illustrated in Figure 7. The gasket and backing ring arefirst positioned on the tubulardrain member adjacent the under side ofthe wall l3 and the sections 65 are next assembled with the lugs 69seated in the recess 28 and the inner lower'edge of the flange 6'!engaged with the under side of the backing ring. In this initialposition the sections 66 incline outwardly from the side of the drainmember, as shown in Figure 7. The sleeve H is then slid longitudinallyover the drain member so as to engage the upper end 12 of the sleevearound the base of the sections 66. The sleeve is then drivenlongitudinally so as to cause the sections 65 to fulcrum inwardly aboutthe lugs 69 and to thereby wedge the backing ring 24 and the gasketlongitudinally against the under side of the container wall.

A further modified form of the support for the drain member I I" isillustrated in Figure 9, wherein the relatively fixed supporting ring 21is held against longitudinal movement on the member by means of a splitring 16 carried in the annular recess 28". The split ring 16 ispreferably of circular cross section and the ring 21" is preferablyprovided with a collar portion .11 which jointly engages the side of themember II" and the outer side of the ring 16, so as to confine the ringin the recess and to hold the member 21" against longitudinaldisplacement. The ring as illustrated in Figure 9 is preferably of asize causing the ring to protrude laterally from the recess and from theside wall of the member H". A plurality of screws 26'' are carried bythe ring member 21" as in the first embodiment, and as here shown thescrews are threaded through nuts 18 which are supported on the uppersurface of the ring member. As a further feature of distinction over thefirst embodiment, the upper ends 19 of the screws are mounted in anannular recess 8| in the backing ring 24" so as to hold the screwsagainst radial displacement on the backing ring. The recess 8| ispreferably formed in the backing ring so as to provide a protuberance onthe top surface s of the backing ring which tends to crowd the gasket23" towards the wall of the member II" and towards the container walll3. Also, the gasket 23 is preferably widened at the inner edge thereofsurrounding the member II" and is arranged with both of its top andbottom surfaces 82 flared or inclined divergently towards the inner edgeof the gasket. The upper surface of the backing ring 24" is preferablybeveled to conform to the flared or inclined abutting surface of thegasket. Preferably, the gasket and rings and screws, etc., arecompletely enclosed within a casing 83 which is provided in the presentembodiment with a cylindrical side wall 84 which is adapted to slideover the rings 24" and 21" and to extend from the under side of the wallI 3" to below the heads of the screws 26". The lower end wall 86 isprovided with a central opening for engaging over the member II". By theuse of the member 83 the several parts of the fitting are shielded fromview and may be left in unfinished metal without detracting from theappearance of the fitting.

I claim:

1. A drain for a container having an opening in a wall thereof, atubular member adapted for mounting through said opening and having aflange at an end for engaging one side of said wall surrounding saidopening, an annular compressible gasket surrounding said member andadapted to engage the opposite side of said wall at said opening, anannular backing ring surrounding said member and movable longitudinallythereon against said gasket, a plurality of sections arranged aroundsaid member and fulcrumed on said member for movement from an and havinga length and longitudinal position on said member to engage said backingring adjacent said parallel position to cause upon movement of saidsections to said parallel position a longitudinal movement of saidbacking ring and gasket against said wall, and means for fulcruming saidsections from said inclined position to said parallel position.

2. A drain for a container having an opening in a wall thereof, atubular member adapted for mounting through said opening and having aflange at an end for engaging one side of said wall surrounding saidopening, an annular compressible gasket surrounding said member andadapted to engage the opposite side of said wall at said opening, anannular backing ring surrounding said member and movable longitudinallythereon against said gasket and being provided with a longitudinallyinclined surface, said member being provided with an annularrecess, aplurality of sections surrounding said member and each having a lugengageable in said recess to fulcrum said sections for movement from anoutwardly inclined position on said member to a substantially parallelposition relative to said member, each of said sections having anoutwardly and longitudinally extending flange engageable with saidinclined surface on said ring upon fulcruming of said sections from saidsecond to first position, and a sleeve adapted for mounting over saidsections for causing a displacement thereof to said parallel positionand a longitudinal displacement of said backing ring.

3. A drain for a container having an opening in a wall thereof, atubular member adapted for mounting through said opening and having aflange on an end for engaging one side of said wall surrounding saidopening, an annular compressible gasket surrounding said member andadapted to engage the opposite side of said wall at said opening, anannular backing ring surrounding said member and movable longitudinallythereon for positioning of one side thereof against said gasket, theopposite side of said ring being provided with an annular recess, meansfixedly supported on said member in longitudinally spaced relation tosaid backing ring, and a plurality of screws carried by said means andextendible longitudinally thereof into engagement with said backing ringin said recess.

4. A drain for a container having a circular opening in a wall thereofcomprising, a cylindrical member of sheet metal or the like having aflange at one end thereof and adapted for extension through saidopening, a rolled annular depression in said tubular member and spacedfrom said flange, a compressible gasket surrounding said member andengageable with the wall of said container, an annular backing ringconfining and supporting said gasket and slidable on said tubularmember, a clamping ring adapted to be tightened around said tubularmember in said annular depression, and threaded means held by saidclamping ring to force said gasket and annular flange against oppositesides of the container wall adjacent said opening.

5. In combination with a sink having a discharge opening through abottom Wall thereof and formed with a beveled edge portion surroundingsaid opening at the inner side of said sink wall, a drain fittingcomprising a sheet metal tube adapted for insertion through said openingand having a circumscribing flange at one end thereof beveled to fitagainst said edge portion with said tube extending through said openingto the side of said wall, an annular compressible gasket surroundingsaid tube and adapted to engage said sink wall at the outer side thereofsurrounding said opening and formed with a beveled surface adapted tofit into said opening and fit directly against the peripheral edge ofsaid opening, an annular backing ring for said gasket surrounding saidtube and slidably engaged over said tube, said tube being formed with anannular indentation spaced from said flange and of circular form inlongitudinal cross-section, means extending around said tube and havinga curved part fitting into said indentation to hold said means againstlongitudinal movement away from said flange and having a compressionmember engaging said backing ring for clamping said sink wall betweensaid flange and said gasket.

6. A drain fitting for a sink having a discharge opening through abottom wall thereof comprising, a sheet metal tube adapted for insertionthrough said opening and having a circumscribing flange at one endthereof adapted to fit against said Wall at the inner side of said sinkwith said tube extending through said opening to the outer side of saidwall, an annular compressible gasket surrounding said tube and adaptedto engage said outer sink wall around said opening, an annular backingring for said gasket surrounding said tube and slidably engaged oversaid tube, said tube having an annular seat formed therein inlongitudinally spaced relation from said flange, a split ring mounted insaid seat and held therein against a longitudinal displacement away fromsaid flange and projecting from the side of said tube member, an annularmember mounted around said tube and formed with an annular seat at theinner peripheral edge thereof adapted to embrace said split ring tothereby interlock said tube seat and ring and member seat againstlongitudinal displacement away from said flange, and screws carried bysaid annular member and extending longitudinally to engage said backingring forclamping said simr wall between said fiange and gasket.

7. A drain fitting for a sink having a discharge opening through abottom wall thereof comprising, a sheet metal tube adapted for insertionthrough said opening and having a circumscribing flange at one endthereof adapted to fit against said wall at the inner side of said sinkwith said tube extending through said opening to the outer side of saidwall, an annular compressible gasket surrounding said tube and adaptedto engage said outer sink wall around said opening, an annular backingring for said gasket surrounding said tube and slidably engaged oversaid tube, said tube having an annular indentation of arcuate form inlongitudinal crosssection spaced longitudinally from said flange, asplit wire ring of round cross-section adapted to be sprung into saidindentation, an annular member surrounding said tube member and formedwith a seat at the internal periphery thereof adapted to fit over andembrace said wire ring, and screws carried by and extendinglongitudinally from said ring member to engage said backing ring forclamping said sink wall between said flange and gasket.

JOSEPH E. FRANCES.

